/// <summary>
/// Serializes the packet into a byte array for sending
/// </summary>
/// <returns></returns>
public byte[] ToByteArray()
{
PacketBuffer buffer = new PacketBuffer();
buffer.WriteBytes(Encoding.ASCII.GetBytes(PacketType));
buffer.WriteBytes(PacketData);
return(buffer.ToArray());
}
public byte[] ToByteArray()
{
byte[] data = new byte[8];
PacketBuffer buffer = new PacketBuffer();
buffer.WriteBytes(Encoding.ASCII.GetBytes(PacketType));
buffer.WriteBytes(BitConverter.GetBytes(PacketNumber));
buffer.WriteBytes(BitConverter.GetBytes(TransferID));
return(buffer.ToArray());
}
public TextTransferPacket(byte[] data)
{
PacketBuffer buffer = new PacketBuffer();
buffer.WriteBytes(data);
PacketType = Encoding.ASCII.GetString(buffer.ReadBytes(4));
PacketText = buffer.ReadString();
buffer.Dispose();
}
/// <summary>
/// Deserializes a data buffer into a ScoutResponsePacket
/// </summary>
/// <param name="data"></param>
/// <param name="endPoint"></param>
public ScoutResponsePacket(byte[] data, IPEndPoint endPoint)
{
PacketBuffer buffer = new PacketBuffer();
buffer.WriteBytes(data);
PacketType = Encoding.Default.GetString(buffer.ReadBytes(4));
PacketData = new byte[data.Length - 4];
PacketEndPoint = endPoint;
Array.Copy(data, 4, PacketData, 0, PacketData.Length);
buffer.Dispose();
}
private void ProcessFinishedFile()
{
// Create the byte buffer and include it in the OnTransferFinished event
PacketBuffer buffer = new PacketBuffer();
for (int i = 0; i < ReceivedChunks.Count; i++)
{
buffer.WriteBytes(ReceivedChunks[i].Data);
}
byte[] fileBuffer = buffer.ToArray();
OnTransferFinished?.Invoke(null, new InboundTransferEventArgs(TransferID, true, fileBuffer, IncomingFileStructure));
fileBuffer = null;
ReceivedChunks = null;
}
/// <summary>
/// Returns a NetworkDevice object containing the information included in the packet.
/// </summary>
/// <returns></returns>
public NetworkDevice GetNetworkDevice()
{
// The packet data needs to be at least 6 bytes long. Strings in the packetbuffer class are saved with a
// 4-bytes integer for the lenght, and then the string itself
if (PacketData == null || PacketData.Length < 6)
{
return(null);
}
PacketBuffer buffer = new PacketBuffer();
buffer.WriteBytes(PacketData);
NetworkDevice device = new NetworkDevice();
device.Name = buffer.ReadString();
device.Type = (NetworkDeviceType)buffer.ReadByte();
device.EndPoint = PacketEndPoint;
buffer.Dispose();
return(device);
}
/// <summary>
/// Returns a FileStructure object containing the information
/// </summary>
/// <returns></returns>
public LocalFileStructure GetFileStructure()
{
if (PacketData == null || PacketData.Length < 12)
{
return(null);
}
PacketBuffer buffer = new PacketBuffer();
buffer.WriteBytes(PacketData);
LocalFileStructure fStruct = new LocalFileStructure();
buffer.ReadInteger(); // Ignore the local ID
fStruct.FileSize = buffer.ReadLong();
fStruct.FileName = buffer.ReadString();
fStruct.FileExtension = buffer.ReadString();
fStruct.FullName = fStruct.FileName + fStruct.FileExtension;
buffer.Dispose();
return(fStruct);
}